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What happens to the electromagnet when the circuit is closed?
An electromagnet if formed by pushing current through a coil. If the circuit is truly open, current will cease to flow, thus no electromagnet.
What happens when a Diode is in reverse breakdown?
Normally,the reverse current is so small that it can be neglected.If the external reverse-bias voltage is increased to a value( 50 V or larger) ,at this stage the reverse breakdown occours
When does an electromagnet produce a magnetic field?
A magnetic field is generated whenever a current is passing through a wire.
What are the advantages of Permanent magnet over Electromagnet?
Unlike a permanent magnet, an electromagnet can be turned on and off. One useful advantage of this: Place a metal bar inside the electromagnet, apply current through the electromagnet in one direction, and the magnetic field would move that bar one way -- reverse the current reverses the magnetic field and the bar would move the opposite way. You could use that effect and make an electronically controlled lock for a door.
What are the sources of reverse current in a diode?
doping concentration,temperature are the major source of reverse current
What happens when you reverse the current in a current-carrying magnetic field?
The polarity of the electromagnet reverses.
What happens if you reverse the current flow in an electromagnet?
Reversing the current flow in an electromagnet changes the direction of the magnetic field it produces. This can be useful for changing the polarity of the electromagnet or controlling the direction of a mechanical system it is used in.
What happens when you decrease the current in an electromagnet?
When you decrease the current in an electromagnet, the magnetic field decreases.
How do you reverse the magnetic field of an electromagnet?
To reverse the magnetic field of an electromagnet, you can either reverse the direction of the current flowing through the coil or change the polarity of the power supply connected to the coil. This will change the direction of the magnetic field produced by the electromagnet.
What happens to the electromagnet when the circuit is closed?
An electromagnet if formed by pushing current through a coil. If the circuit is truly open, current will cease to flow, thus no electromagnet.
What happens if you increase the current in an electomagnet?
As current increases, the electromagnet strength will increase.
When the direction of current flow is reversed the current of an electromagnet swap over?
When the direction of current flow is reversed in an electromagnet, the magnetic poles also reverse. This means that the north pole becomes the south pole and vice versa. So, the current in the electromagnet determines the polarity of the magnetic field it produces.
What happen to an electromagnet's field if the direction of the current ic reversed?
If the direction of the current in an electromagnet is reversed, the direction of the magnetic field surrounding the electromagnet will also reverse. This change in direction will affect the polarity of the electromagnet, causing its north and south poles to switch.
What happens when you turn on the current in an electromagnet?
When you turn on the current in an electromagnet, it induces a magnetic field around the magnet. This magnetic field allows the electromagnet to attract or repel other magnetic objects or influence nearby currents. The strength of the magnetic field can be adjusted by changing the amount of current flowing through the electromagnet.
What happens when a current stops flowing through the wire of an electromagnet?
magnetic fieldOnly
What happens when the electrical current stops in an electromagnet?
When the electrical current stops in an electromagnet, the magnetic field produced by the coil will dissipate, causing the magnetism to disappear. The electromagnet will no longer attract or repel other magnetic materials until current is passed through the coil again.
Is it possible to use the reverse force of a magnet to make float?
The poles of an electromagnet can change depend inf on the current supplied.
